JP2002366112A - 液晶駆動装置及び液晶表示装置 - Google Patents

液晶駆動装置及び液晶表示装置

Info

Publication number
JP2002366112A
JP2002366112A JP2001171886A JP2001171886A JP2002366112A JP 2002366112 A JP2002366112 A JP 2002366112A JP 2001171886 A JP2001171886 A JP 2001171886A JP 2001171886 A JP2001171886 A JP 2001171886A JP 2002366112 A JP2002366112 A JP 2002366112A
Authority
JP
Japan
Prior art keywords
liquid crystal
voltage
resistance
gradation
ladder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2001171886A
Other languages
English (en)
Japanese (ja)
Inventor
Yasuyuki Kudo
泰幸 工藤
Riyoujin Akai
亮仁 赤井
Kazuo Daimon
一夫 大門
Kazunari Kurokawa
一成 黒川
Hiromi Aizawa
弘己 相澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to JP2001171886A priority Critical patent/JP2002366112A/ja
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to US10/161,635 priority patent/US7023458B2/en
Priority to TW091112188A priority patent/TWI230366B/zh
Priority to CNB2004100923925A priority patent/CN100440277C/zh
Priority to KR10-2002-0031858A priority patent/KR100472272B1/ko
Priority to CNB021218137A priority patent/CN1207697C/zh
Publication of JP2002366112A publication Critical patent/JP2002366112A/ja
Priority to KR1020040044916A priority patent/KR100621966B1/ko
Priority to US11/126,160 priority patent/US7193637B2/en
Priority to US11/248,308 priority patent/US7511693B2/en
Priority to KR1020060039263A priority patent/KR100621967B1/ko
Priority to US12/411,984 priority patent/US8120561B2/en
Priority to US13/372,814 priority patent/US8633881B2/en
Priority to US14/159,467 priority patent/US9336733B2/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/027—Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0606—Manual adjustment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
JP2001171886A 2001-06-07 2001-06-07 液晶駆動装置及び液晶表示装置 Pending JP2002366112A (ja)

Priority Applications (13)

Application Number Priority Date Filing Date Title
JP2001171886A JP2002366112A (ja) 2001-06-07 2001-06-07 液晶駆動装置及び液晶表示装置
US10/161,635 US7023458B2 (en) 2001-06-07 2002-06-05 Display apparatus and driving device for displaying
TW091112188A TWI230366B (en) 2001-06-07 2002-06-06 Display apparatus and driving device for displaying
CNB2004100923925A CN100440277C (zh) 2001-06-07 2002-06-07 显示装置及显示用驱动电路
KR10-2002-0031858A KR100472272B1 (ko) 2001-06-07 2002-06-07 표시 시스템
CNB021218137A CN1207697C (zh) 2001-06-07 2002-06-07 显示装置及显示用驱动电路
KR1020040044916A KR100621966B1 (ko) 2001-06-07 2004-06-17 표시용 구동 회로
US11/126,160 US7193637B2 (en) 2001-06-07 2005-05-11 Display apparatus and driving device for displaying
US11/248,308 US7511693B2 (en) 2001-06-07 2005-10-13 Display apparatus and driving device for displaying
KR1020060039263A KR100621967B1 (ko) 2001-06-07 2006-05-01 표시용 구동 회로
US12/411,984 US8120561B2 (en) 2001-06-07 2009-03-26 Display apparatus and driving device for displaying
US13/372,814 US8633881B2 (en) 2001-06-07 2012-02-14 Display apparatus and driving device for displaying
US14/159,467 US9336733B2 (en) 2001-06-07 2014-01-21 Display apparatus and driving device for displaying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001171886A JP2002366112A (ja) 2001-06-07 2001-06-07 液晶駆動装置及び液晶表示装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2004212464A Division JP4364742B2 (ja) 2004-07-21 2004-07-21 表示駆動装置

Publications (1)

Publication Number Publication Date
JP2002366112A true JP2002366112A (ja) 2002-12-20

Family

ID=19013584

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001171886A Pending JP2002366112A (ja) 2001-06-07 2001-06-07 液晶駆動装置及び液晶表示装置

Country Status (5)

Country Link
US (6) US7023458B2 (ko)
JP (1) JP2002366112A (ko)
KR (3) KR100472272B1 (ko)
CN (2) CN100440277C (ko)
TW (1) TWI230366B (ko)

Cited By (60)

* Cited by examiner, † Cited by third party
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JP2004240428A (ja) * 2003-02-06 2004-08-26 Samsung Electronics Co Ltd 液晶表示装置、液晶表示装置の駆動装置及び方法
JP2004341251A (ja) * 2003-05-15 2004-12-02 Renesas Technology Corp 表示制御回路及び表示駆動回路
JP2004354625A (ja) * 2003-05-28 2004-12-16 Renesas Technology Corp 自発光表示装置及び自発光表示用駆動回路
JP2005222063A (ja) * 2004-02-04 2005-08-18 Lg Electron Inc エレクトロ−ルミネセンス表示装置
WO2005081218A1 (ja) * 2004-02-23 2005-09-01 Toshiba Matsushita Display Technology Co., Ltd. 表示信号処理装置および表示装置
WO2005088591A1 (ja) * 2004-03-17 2005-09-22 Rohm Co., Ltd ガンマ補正回路、表示パネル及びそれらを備える表示装置
JP2005266346A (ja) * 2004-03-18 2005-09-29 Seiko Epson Corp 基準電圧発生回路、データドライバ、表示装置及び電子機器
WO2005093701A1 (ja) * 2004-03-29 2005-10-06 Sony Corporation 表示パネル、表示装置、半導体集積回路及び電子機器
JP2005284038A (ja) * 2004-03-30 2005-10-13 Sony Corp フラットディスプレイ装置の駆動回路及びフラットディスプレイ装置
JP2005284037A (ja) * 2004-03-30 2005-10-13 Sony Corp フラットディスプレイ装置の駆動回路及びフラットディスプレイ装置
JP2005300866A (ja) * 2004-04-09 2005-10-27 Sony Corp フラットディスプレイ装置
JP2005316188A (ja) * 2004-04-28 2005-11-10 Sony Corp フラットディスプレイ装置の駆動回路及びフラットディスプレイ装置
WO2006018959A1 (ja) * 2004-08-20 2006-02-23 Sony Corporation フラットディスプレイ装置及びフラットディスプレイ装置の駆動方法
JP2006053561A (ja) * 2004-08-09 2006-02-23 Chi Mei Electronics Corp ガンマ補正電圧発生装置および同装置を用いたディスプレイ
JP2006146134A (ja) * 2004-10-22 2006-06-08 Renesas Technology Corp 表示装置用駆動装置
JP2006154670A (ja) * 2004-12-01 2006-06-15 Sharp Corp 液晶表示装置用階調電圧信号供給装置，液晶表示装置
JP2006227272A (ja) * 2005-02-17 2006-08-31 Seiko Epson Corp 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP2006227271A (ja) * 2005-02-17 2006-08-31 Seiko Epson Corp 基準電圧選択回路、基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP2006243232A (ja) * 2005-03-02 2006-09-14 Seiko Epson Corp 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP2006243233A (ja) * 2005-03-02 2006-09-14 Seiko Epson Corp 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP2006243231A (ja) * 2005-03-02 2006-09-14 Seiko Epson Corp 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP2006284979A (ja) * 2005-04-01 2006-10-19 Hitachi Displays Ltd 表示装置
JP2006293363A (ja) * 2005-04-13 2006-10-26 Samsung Sdi Co Ltd 有機発光表示装置
JP2006309127A (ja) * 2005-04-28 2006-11-09 Samsung Sdi Co Ltd 発光表示装置及びその駆動方法
JP2006313189A (ja) * 2005-05-06 2006-11-16 Seiko Epson Corp 発光装置、その駆動方法および電子機器
JP2006313306A (ja) * 2005-05-02 2006-11-16 Samsung Sdi Co Ltd ガンマ基準電圧発生回路，及びそれを備える平板表示装置
JP2007010871A (ja) * 2005-06-29 2007-01-18 Toshiba Matsushita Display Technology Co Ltd 表示信号処理装置および液晶表示装置
JP2007025239A (ja) * 2005-07-15 2007-02-01 Casio Comput Co Ltd 表示駆動装置及び表示装置
JP2007047791A (ja) * 2005-08-08 2007-02-22 Samsung Sdi Co Ltd 平板表示装置および平板表示装置の制御方法
JP2007065670A (ja) * 2005-08-31 2007-03-15 Lg Phillips Lcd Co Ltd 液晶表示装置及びその駆動方法
JP2007148403A (ja) * 2005-11-24 2007-06-14 Samsung Electronics Co Ltd 液晶表示装置の駆動装置
JP2007171997A (ja) * 2007-03-19 2007-07-05 Seiko Epson Corp 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP2007183670A (ja) * 2007-03-19 2007-07-19 Seiko Epson Corp 基準電圧発生回路、表示ドライバ、電気光学装置及び電子機器
JP2008164721A (ja) * 2006-12-27 2008-07-17 Hitachi Displays Ltd 表示装置
JP2008170683A (ja) * 2007-01-11 2008-07-24 Hitachi Displays Ltd 表示装置
KR100850497B1 (ko) 2007-04-16 2008-08-05 주식회사 실리콘웍스 감마 버퍼 배치방법 및 상기 방법을 적용한 평판디스플레이
JP2008225132A (ja) * 2007-03-14 2008-09-25 Renesas Technology Corp 表示用駆動回路
US7463231B2 (en) 2004-09-09 2008-12-09 Nec Electronics Corporation Grayscale voltage generating circuit and method
JP2009110008A (ja) * 2003-05-07 2009-05-21 Toshiba Matsushita Display Technology Co Ltd Ｅｌ表示装置
JP2009128876A (ja) * 2007-11-28 2009-06-11 Renesas Technology Corp 半導体装置
US7639222B2 (en) 2005-10-04 2009-12-29 Chunghwa Picture Tubes, Ltd. Flat panel display, image correction circuit and method of the same
US7638949B2 (en) 2005-02-28 2009-12-29 Seiko Epson Corporation Organic electroluminescence device, method for driving thereof, and electronic appliance
US7652432B2 (en) 2005-03-18 2010-01-26 Seiko Epson Corporation Organic electro-luminescence device, driving method thereof and electronic apparatus
JP2010020299A (ja) * 2008-07-08 2010-01-28 Lg Display Co Ltd ガンマ基準電圧発生回路及び平板表示装置
US7692644B2 (en) 2006-10-13 2010-04-06 Hitachi Displays, Ltd. Display apparatus
US7696967B2 (en) 2005-12-27 2010-04-13 Samsung Electronics Co., Ltd. Gamma control circuit and method thereof
US7728854B2 (en) 2005-01-25 2010-06-01 Samsung Electronics Co., Ltd. Gamma correction device, display apparatus including the same, and method of gamma correction therein
JP2010204312A (ja) * 2009-03-02 2010-09-16 Panasonic Corp 表示駆動装置、表示装置
JP2011221480A (ja) * 2010-04-14 2011-11-04 Samsung Mobile Display Co Ltd 表示装置及びその駆動方法
KR101128501B1 (ko) * 2004-05-12 2012-03-28 소니 주식회사 평면 디스플레이 장치의 구동회로 및 평면 디스플레이 장치
JP2012093778A (ja) * 2011-12-20 2012-05-17 Seiko Epson Corp 基準電圧発生回路、データドライバ、表示装置及び電子機器
JP2012137783A (ja) * 2012-03-30 2012-07-19 Renesas Electronics Corp 自発光表示用駆動回路
KR101175564B1 (ko) * 2006-06-29 2012-08-21 엘지디스플레이 주식회사 액정표시장치의 감마전압 공급 회로
KR101201327B1 (ko) * 2006-01-18 2012-11-14 엘지디스플레이 주식회사 액정 표시장치와 그 구동방법
KR101263510B1 (ko) 2006-06-30 2013-05-13 엘지디스플레이 주식회사 감마 보정 가능한 액정 표시 장치
JP2013114256A (ja) * 2011-11-25 2013-06-10 Jaeyeol Park 伝達関数を用いた表示装置の補正システム及びその補正方法
JP2013200557A (ja) * 2012-03-23 2013-10-03 Lg Display Co Ltd 液晶表示装置
JP2014174413A (ja) * 2013-03-11 2014-09-22 Renesas Sp Drivers Inc 表示パネルドライバ及び表示装置
US9093244B2 (en) 2007-04-16 2015-07-28 Silicon Works Co., Ltd. Method for routing gamma voltages in flat panel display
JP2015148816A (ja) * 2012-04-23 2015-08-20 ▲し▼創電子股▲ふん▼有限公司 ちらつき除去可能なディスプレイパネルの駆動回路

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US7259740B2 (en) * 2001-10-03 2007-08-21 Nec Corporation Display device and semiconductor device
JP4108360B2 (ja) * 2002-04-25 2008-06-25 シャープ株式会社 表示駆動装置およびそれを用いた表示装置
JP2004085806A (ja) * 2002-08-26 2004-03-18 Nec Yamagata Ltd 表示パネルの駆動装置
JP2004111262A (ja) * 2002-09-19 2004-04-08 Nec Yamagata Ltd ガンマ補正回路およびガンマ補正回路を備えたパネル駆動装置
JP2004157288A (ja) * 2002-11-06 2004-06-03 Sharp Corp 表示装置
TWI224299B (en) * 2003-01-30 2004-11-21 Richtek Technology Corp Gamma voltage generator allowing individual adjustments and method thereof
JP4410997B2 (ja) * 2003-02-20 2010-02-10 パナソニック株式会社 表示パネルの駆動装置
JP4326242B2 (ja) * 2003-03-13 2009-09-02 株式会社 日立ディスプレイズ 液晶表示装置
JP2004325716A (ja) * 2003-04-24 2004-11-18 Sharp Corp カラー画像表示のための駆動回路およびこれを備えた表示装置
CN100421134C (zh) * 2003-04-28 2008-09-24 松下电器产业株式会社 灰度显示装置
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US7193637B2 (en) 2007-03-20
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US20050200584A1 (en) 2005-09-15
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US8120561B2 (en) 2012-02-21
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